Key button arrangement for a handset



FIG. 1 is a front view of a portion of a key button arrangement for a handset showing my new design;

FIG. 2 is a front perspective view thereof;

FIG. 3 is a front view of a second embodiment of a key button arrangement for a handset showing my new design; and,

FIG. 4 is a front perspective view thereof.

The broken line showing of the remainder of the handset in FIGS. 1-4 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for key button arrangement for a handset, as shown and described. 